.header {
    background-color: #efefef;
    width: 100%;
    height: 80px;
}
.heard_nav{
    width: 1200px;
    margin: 0 auto;
    position: relative;
}
.heard_nav img{
    position: absolute;
    left: 0;
    top: 6px;
}
.dianhua_nav a {
    color: #2d9379;
    float: right;
    font-size: 24px;
    padding-top: 20px;
}
.daohanglan_nav {
    background-color: #2d9379;
    width: 100%;
    height: 60px;
}
.left_nav {
    width: 1200px;
    height: 60px;
}
.daohanglan_nav .nav{
    width: 1200px;
    margin: 0 auto;
}
.left_nav li {
    float: left;
    width: 120px;
    height: 57px;
    line-height: 60px;
    text-align: center;
}
.left_nav li a {
    font-size: 18px;
    color: #ffffff;
}
.left_nav li a:hover {
    color: #ffe200;
}
.left_nav_li {
    border-bottom: 3px solid #ffe200;
}
.banner {
    width: 100%;
    height: 600px;
    margin: 0 auto;
    background: url("../images/banner.jpg") no-repeat center;
    background-size: cover;
}
.tupian_nav {
    width: 1200px;
    margin: 0 auto;
}
.tupian_nav li {
    float: left;
    width: 350px;
    padding-top: 60px;
}
.tupian_22,.tupian_33 {
    padding-left:75px;
}
.tupian_nav p {
    background-color: rgba(239, 239, 239, 0.64);
    width: 110px;
    height: 110px;
    border-radius: 50%;
    display: inline-block;
}
.tupian_11,.tupian_22,.tupian_33 {
    position: relative;
}
.tupian_11 p{
    position: absolute;
    top:50%;
    left: 50%;
    margin-top: -30px;
    margin-left: -60px;
    line-height: 100px;
    color: #2d9379;
    font-size: 22px;
    text-align: center;
}
.tupian_22 p{
    position: absolute;
    top:50%;
    left: 50%;
    margin-top: -30px;
    margin-left: -10px;
    line-height: 100px;
    color: #2d9379;
    font-size: 22px;
    text-align: center;
}
.tupian_33 p{
    position: absolute;
    top:50%;
    left: 50%;
    margin-top: -30px;
    margin-left: -10px;
    line-height: 100px;
    color: #2d9379;
    font-size: 22px;
    text-align: center;
}
.neirong {
    width: 1200px;
    margin: 0 auto;
}
.neirong li {
    float: left;
    width: 600px;
    text-align: center;
}
.neirong h3{
    padding: 50px 0;
    text-align: center;
    color: #2d9379;
    font-size: 35px;
}
.neirong h4{
    font-size: 26px;
    color: #2d9379;
    padding-bottom: 20px;
}
.neirong p {
    font-size: 20px;
    padding-bottom:5px;
    color: #2d9379;
}
.beijingtu_2 {
    width: 1200px;
    height: 580px;
    background: url("../images/xiabanner.png") no-repeat center;
    background-size: cover;
    margin: 50px 0 0 50px ;
    position: relative;
}
.beijingtu_2 p:first-child{
    position: absolute;
    top:23%;
    left:70%;
    font-size: 25px;
    color: #2d9379;
    font-weight: bold;
}
.nav_3{
    position: absolute;
    top:70%;
    left: 60%;
    font-size: 20px;
    color: #2d9379;
}
.nav_1{
    position: absolute;
    top:33%;
    left:60%;
    font-size: 25px;
    color: #2d9379;
    font-weight: bold;
}
.nav_2{
    position: absolute;
    top:62%;
    left:63%;
    font-size: 20px;
    color: #2d9379;
}
.nav_4 {
    width:200px;
    height: 50px;
    border-radius:200px;
    background-color: #2d9379;
    position: absolute;
    top: 80%;
    left:67%;
}
.nav_4 span {
    display: inline-block;
    color: white;
    font-size: 25px;
    position: absolute;
    top:19%;
    left:23%;
}
.nav_4 span a:hover {
    color: #ffe200;
}
.f{
    margin: 0 auto;
    padding-top: 40px;
    width: 100%;
    height: 800px;
    border-bottom: 1px solid #bee3d9;
    background-color: #2d9379;
}
.footer{
    text-align: center;
    width: 1200px;
    margin: 0 auto;
    color: white;

}
.footer p{
    font-size: 20px;
    margin: 20px 0;
}
.footer h4{
    font-size: 30px;
}
.footer h3{
    font-size: 35px;
}
.footer ul{
    padding-right: 89px;
    float: left;
}
.footer ul li{
    padding-bottom: 5px;
}
.footer .sanjiao{
    margin: 140px 0 80px 0;
}

.footer .tu{
    margin-bottom: 12px;

    width: 100px;
    height: 100px;
}
.yejiao{
    margin: 0 auto;
    width: 100%;
    height: 100px;
    background-color: #2d9379;
}
.yejiao .ye{
    padding-top: 30px;
    text-align: center;
    margin: 0 auto;
    color: white;
}
.yejiao .ye p:first-child{
    padding-bottom: 10px;
}
